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":110840917.39000000059604644775390625,"last":110840917.39000000059604644775390625,"buy":110840917.39000000059604644775390625,"sell":110840917.39000000059604644775390625,"symbol":"ARS"},"AUD":{"15m":147597.75,"last":147597.75,"buy":147597.75,"sell":147597.75,"symbol":"AUD"},"BRL":{"15m":536485.709999999962747097015380859375,"last":536485.709999999962747097015380859375,"buy":536485.709999999962747097015380859375,"sell":536485.709999999962747097015380859375,"symbol":"BRL"},"CAD":{"15m":130394.91000000000349245965480804443359375,"last":130394.91000000000349245965480804443359375,"buy":130394.91000000000349245965480804443359375,"sell":130394.91000000000349245965480804443359375,"symbol":"CAD"},"CHF":{"15m":78100.360000000000582076609134674072265625,"last":78100.360000000000582076609134674072265625,"buy":78100.360000000000582076609134674072265625,"sell":78100.360000000000582076609134674072265625,"symbol":"CHF"},"CLP":{"15m":89911783.569999992847442626953125,"last":89911783.569999992847442626953125,"buy":89911783.569999992847442626953125,"sell":89911783.569999992847442626953125,"symbol":"CLP"},"CNY":{"15m":689535.089999999967403709888458251953125,"last":689535.089999999967403709888458251953125,"buy":689535.089999999967403709888458251953125,"sell":689535.089999999967403709888458251953125,"symbol":"CNY"},"CZK":{"15m":2080572.36000000010244548320770263671875,"last":2080572.36000000010244548320770263671875,"buy":2080572.36000000010244548320770263671875,"sell":2080572.36000000010244548320770263671875,"symbol":"CZK"},"DKK":{"15m":622717.7700000000186264514923095703125,"last":622717.7700000000186264514923095703125,"buy":622717.7700000000186264514923095703125,"sell":622717.7700000000186264514923095703125,"symbol":"DKK"},"EUR":{"15m":83429.6799999999930150806903839111328125,"last":83429.6799999999930150806903839111328125,"buy":83429.6799999999930150806903839111328125,"sell":83429.6799999999930150806903839111328125,"symbol":"EUR"},"GBP":{"15m":70914.259999999994761310517787933349609375,"last":70914.259999999994761310517787933349609375,"buy":70914.259999999994761310517787933349609375,"sell":70914.259999999994761310517787933349609375,"symbol":"GBP"},"HKD":{"15m":733048.109999999986030161380767822265625,"last":733048.109999999986030161380767822265625,"buy":733048.109999999986030161380767822265625,"sell":733048.109999999986030161380767822265625,"symbol":"HKD"},"HRK":{"15m":435996.4799999999813735485076904296875,"last":435996.4799999999813735485076904296875,"buy":435996.4799999999813735485076904296875,"sell":435996.4799999999813735485076904296875,"symbol":"HRK"},"HUF":{"15m":33749883.25,"last":33749883.25,"buy":33749883.25,"sell":33749883.25,"symbol":"HUF"},"INR":{"15m":7992860.4800000004470348358154296875,"last":7992860.4800000004470348358154296875,"buy":7992860.4800000004470348358154296875,"sell":7992860.4800000004470348358154296875,"symbol":"INR"},"ISK":{"15m":12357215.68999999947845935821533203125,"last":12357215.68999999947845935821533203125,"buy":12357215.68999999947845935821533203125,"sell":12357215.68999999947845935821533203125,"symbol":"ISK"},"JPY":{"15m":13516701.1999999992549419403076171875,"last":13516701.1999999992549419403076171875,"buy":13516701.1999999992549419403076171875,"sell":13516701.1999999992549419403076171875,"symbol":"JPY"},"KRW":{"15m":134667543.1599999964237213134765625,"last":134667543.1599999964237213134765625,"buy":134667543.1599999964237213134765625,"sell":134667543.1599999964237213134765625,"symbol":"KRW"},"NGN":{"15m":150890898.8499999940395355224609375,"last":150890898.8499999940395355224609375,"buy":150890898.8499999940395355224609375,"sell":150890898.8499999940395355224609375,"symbol":"NGN"},"NZD":{"15m":159253.01999999998952262103557586669921875,"last":159253.01999999998952262103557586669921875,"buy":159253.01999999998952262103557586669921875,"sell":159253.01999999998952262103557586669921875,"symbol":"NZD"},"PLN":{"15m":357012.8200000000069849193096160888671875,"last":357012.8200000000069849193096160888671875,"buy":357012.8200000000069849193096160888671875,"sell":357012.8200000000069849193096160888671875,"symbol":"PLN"},"RON":{"15m":415422.4400000000023283064365386962890625,"last":415422.4400000000023283064365386962890625,"buy":415422.4400000000023283064365386962890625,"sell":415422.4400000000023283064365386962890625,"symbol":"RON"},"RUB":{"15m":7750021.629999999888241291046142578125,"last":7750021.629999999888241291046142578125,"buy":7750021.629999999888241291046142578125,"sell":7750021.629999999888241291046142578125,"symbol":"RUB"},"SEK":{"15m":913280.569999999948777258396148681640625,"last":913280.569999999948777258396148681640625,"buy":913280.569999999948777258396148681640625,"sell":913280.569999999948777258396148681640625,"symbol":"SEK"},"SGD":{"15m":123454.66000000000349245965480804443359375,"last":123454.66000000000349245965480804443359375,"buy":123454.66000000000349245965480804443359375,"sell":123454.66000000000349245965480804443359375,"symbol":"SGD"},"THB":{"15m":3157021.50999999977648258209228515625,"last":3157021.50999999977648258209228515625,"buy":3157021.50999999977648258209228515625,"sell":3157021.50999999977648258209228515625,"symbol":"THB"},"TRY":{"15m":3639412.9799999999813735485076904296875,"last":3639412.9799999999813735485076904296875,"buy":3639412.9799999999813735485076904296875,"sell":3639412.9799999999813735485076904296875,"symbol":"TRY"},"TWD":{"15m":3029143.5200000000186264514923095703125,"last":3029143.5200000000186264514923095703125,"buy":3029143.5200000000186264514923095703125,"sell":3029143.5200000000186264514923095703125,"symbol":"TWD"},"USD":{"15m":94521.60000000000582076609134674072265625,"last":94521.60000000000582076609134674072265625,"buy":94521.60000000000582076609134674072265625,"sell":94521.60000000000582076609134674072265625,"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: 0.00528783