blockchain.info select value

Challenge: Show data from https://blockchain.info/tobtc?currency=USD&value=500 where USD and value is a parameter
Twig-Code:
{% set js1 = '{"ARS":{"15m":98989781.060000002384185791015625,"last":98989781.060000002384185791015625,"buy":98989781.060000002384185791015625,"sell":98989781.060000002384185791015625,"symbol":"ARS"},"AUD":{"15m":101292.3200000000069849193096160888671875,"last":101292.3200000000069849193096160888671875,"buy":101292.3200000000069849193096160888671875,"sell":101292.3200000000069849193096160888671875,"symbol":"AUD"},"BRL":{"15m":363781.619999999995343387126922607421875,"last":363781.619999999995343387126922607421875,"buy":363781.619999999995343387126922607421875,"sell":363781.619999999995343387126922607421875,"symbol":"BRL"},"CAD":{"15m":98793.639999999999417923390865325927734375,"last":98793.639999999999417923390865325927734375,"buy":98793.639999999999417923390865325927734375,"sell":98793.639999999999417923390865325927734375,"symbol":"CAD"},"CHF":{"15m":56475.5400000000008731149137020111083984375,"last":56475.5400000000008731149137020111083984375,"buy":56475.5400000000008731149137020111083984375,"sell":56475.5400000000008731149137020111083984375,"symbol":"CHF"},"CLP":{"15m":64054141.630000002682209014892578125,"last":64054141.630000002682209014892578125,"buy":64054141.630000002682209014892578125,"sell":64054141.630000002682209014892578125,"symbol":"CLP"},"CNY":{"15m":487466.369999999995343387126922607421875,"last":487466.369999999995343387126922607421875,"buy":487466.369999999995343387126922607421875,"sell":487466.369999999995343387126922607421875,"symbol":"CNY"},"CZK":{"15m":1492248.459999999962747097015380859375,"last":1492248.459999999962747097015380859375,"buy":1492248.459999999962747097015380859375,"sell":1492248.459999999962747097015380859375,"symbol":"CZK"},"DKK":{"15m":457301.7100000000209547579288482666015625,"last":457301.7100000000209547579288482666015625,"buy":457301.7100000000209547579288482666015625,"sell":457301.7100000000209547579288482666015625,"symbol":"DKK"},"EUR":{"15m":61194.330000000001746229827404022216796875,"last":61194.330000000001746229827404022216796875,"buy":61194.330000000001746229827404022216796875,"sell":61194.330000000001746229827404022216796875,"symbol":"EUR"},"GBP":{"15m":53264.0199999999967985786497592926025390625,"last":53264.0199999999967985786497592926025390625,"buy":53264.0199999999967985786497592926025390625,"sell":53264.0199999999967985786497592926025390625,"symbol":"GBP"},"GHS":{"15m":785979.930000000051222741603851318359375,"last":785979.930000000051222741603851318359375,"buy":785979.930000000051222741603851318359375,"sell":785979.930000000051222741603851318359375,"symbol":"GHS"},"HKD":{"15m":559013.680000000051222741603851318359375,"last":559013.680000000051222741603851318359375,"buy":559013.680000000051222741603851318359375,"sell":559013.680000000051222741603851318359375,"symbol":"HKD"},"HRK":{"15m":329207.3300000000162981450557708740234375,"last":329207.3300000000162981450557708740234375,"buy":329207.3300000000162981450557708740234375,"sell":329207.3300000000162981450557708740234375,"symbol":"HRK"},"HUF":{"15m":23023991.39000000059604644775390625,"last":23023991.39000000059604644775390625,"buy":23023991.39000000059604644775390625,"sell":23023991.39000000059604644775390625,"symbol":"HUF"},"INR":{"15m":6595912.379999999888241291046142578125,"last":6595912.379999999888241291046142578125,"buy":6595912.379999999888241291046142578125,"sell":6595912.379999999888241291046142578125,"symbol":"INR"},"ISK":{"15m":8800674.61999999918043613433837890625,"last":8800674.61999999918043613433837890625,"buy":8800674.61999999918043613433837890625,"sell":8800674.61999999918043613433837890625,"symbol":"ISK"},"JPY":{"15m":11317012,"last":11317012,"buy":11317012,"sell":11317012,"symbol":"JPY"},"KRW":{"15m":105607987.67000000178813934326171875,"last":105607987.67000000178813934326171875,"buy":105607987.67000000178813934326171875,"sell":105607987.67000000178813934326171875,"symbol":"KRW"},"NGN":{"15m":98300847.37000000476837158203125,"last":98300847.37000000476837158203125,"buy":98300847.37000000476837158203125,"sell":98300847.37000000476837158203125,"symbol":"NGN"},"NZD":{"15m":122580.080000000001746229827404022216796875,"last":122580.080000000001746229827404022216796875,"buy":122580.080000000001746229827404022216796875,"sell":122580.080000000001746229827404022216796875,"symbol":"NZD"},"PLN":{"15m":260243.70999999999185092747211456298828125,"last":260243.70999999999185092747211456298828125,"buy":260243.70999999999185092747211456298828125,"sell":260243.70999999999185092747211456298828125,"symbol":"PLN"},"RON":{"15m":311738.390000000013969838619232177734375,"last":311738.390000000013969838619232177734375,"buy":311738.390000000013969838619232177734375,"sell":311738.390000000013969838619232177734375,"symbol":"RON"},"RUB":{"15m":5606116.4100000001490116119384765625,"last":5606116.4100000001490116119384765625,"buy":5606116.4100000001490116119384765625,"sell":5606116.4100000001490116119384765625,"symbol":"RUB"},"SEK":{"15m":665217.2700000000186264514923095703125,"last":665217.2700000000186264514923095703125,"buy":665217.2700000000186264514923095703125,"sell":665217.2700000000186264514923095703125,"symbol":"SEK"},"SGD":{"15m":90943.619999999995343387126922607421875,"last":90943.619999999995343387126922607421875,"buy":90943.619999999995343387126922607421875,"sell":90943.619999999995343387126922607421875,"symbol":"SGD"},"THB":{"15m":2287418.50999999977648258209228515625,"last":2287418.50999999977648258209228515625,"buy":2287418.50999999977648258209228515625,"sell":2287418.50999999977648258209228515625,"symbol":"THB"},"TRY":{"15m":3176936.8999999999068677425384521484375,"last":3176936.8999999999068677425384521484375,"buy":3176936.8999999999068677425384521484375,"sell":3176936.8999999999068677425384521484375,"symbol":"TRY"},"TWD":{"15m":2264829.879999999888241291046142578125,"last":2264829.879999999888241291046142578125,"buy":2264829.879999999888241291046142578125,"sell":2264829.879999999888241291046142578125,"symbol":"TWD"},"USD":{"15m":71370.3099999999976716935634613037109375,"last":71370.3099999999976716935634613037109375,"buy":71370.3099999999976716935634613037109375,"sell":71370.3099999999976716935634613037109375,"symbol":"USD"}}' %} {% set shcDosc = (js1 | doshortcode) %} {% set shcArr = (shcDosc | json_decode(TRUE) ) %}
Value:

Result: {{nojsonvalue}}
In the above twig-code is “nameoftemplate=blockchaininfogetcurr”, in there is the URL https://blockchain.info/ticker and this twig
{{ _context | json_encode }}

In Action:

Value:

Result: 0.00701146