These last days, I tried to send an SMS with a Guile script.
TL;DR: I succeeded!
Since the code is just a simple HTTP POST request, the longest part should have been the creation of the Twilio account (with a Regulatory Bundle and a phone number).
But in the end, it took me about one evening to set up a development environment with the right dependencies, and then two more evenings to figure out which HTTP headers were needed.
Anyway, here is the script:
;; send-happiness.scm (use-modules (web client) (web http) (ice-9 receive) (ice-9 iconv) (gcrypt base64)) (define TWILIO_ACCOUNT_SID "your-account-sid") (define TWILIO_ACCOUNT_TOKEN "your-account-token") (define TWILIO_PHONE_NUMBER "your-twilio-phone-number") (define TWILIO_CREDENTIALS (base64-encode (string->bytevector (simple-format #f "~A:~A" TWILIO_ACCOUNT_SID TWILIO_ACCOUNT_TOKEN) "utf-8")) (define RECIPIENT_PHONE_NUMBER "a-phone-number") (define TEXT_MESSAGE "Wish you so much happyness !") (http-post (simple-format #f "https://api.twilio.com/2010-04-01/Accounts/~A/Messages" TWILIO_ACCOUNT_SID) #:headers `((content-type . (application/x-www-form-urlencoded (charset . "utf-8")) (authorization . (basic . ,TWILIO_CREDENTIALS))) #:body (simple-format #f "Body=~A&To=~A&From=~A" TEXT_MESSAGE RECIPIENT_PHONE_NUMBER TWILIO_PHONE_NUMBER))
And how to execute it :
$ guix shell guile gnutls guile-gcrypt -- guile send-happiness.scm
All phone numbers must start with the country indicator. For example +33 for a French number.
 the time unit of my Guile tinkering
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