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((not (vector? dat)) ;; it is an error to not receive a vector
(vector #f (vector #f "remote must be called with a vector")))
((> *api-process-request-count* 20) ;; 20)
(debug:print 0 *default-log-port* "WARNING: api:execute-requests received an overloaded message.")
(set! *server-overloaded* #t)
(vector #f (vector #f 'overloaded))) ;; the inner vector is what gets returned. nope, don't know why. please refactor!
(else
(let* ((cmd-in (vector-ref dat 0))
(cmd (if (symbol? cmd-in)
cmd-in
(string->symbol cmd-in)))
(params (vector-ref dat 1))
(start-t (current-milliseconds))
(readonly-mode (dbr:dbstruct-read-only dbstruct))
(readonly-command (member cmd api:read-only-queries))
(writecmd-in-readonly-mode (and readonly-mode (not readonly-command)))
(foo (begin
(common:telemetry-log (conc "api-in:"(->string cmd))
payload: `((params . ,params)))
#t))
(res
(if writecmd-in-readonly-mode
(conc "attempt to run write command "cmd" on a read-only database")
(case cmd
;;===============================================
;; READ/WRITE QUERIES
;;===============================================
((get-keys-write) (db:get-keys dbstruct)) ;; force a dummy "write" query to force server; for debug in -repl
;; SERVERS
((start-server) (apply server:kind-run params))
((kill-server) (set! *server-run* #f))
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((not (vector? dat)) ;; it is an error to not receive a vector
(vector #f (vector #f "remote must be called with a vector")))
((> *api-process-request-count* 20) ;; 20)
(debug:print 0 *default-log-port* "WARNING: api:execute-requests received an overloaded message.")
(set! *server-overloaded* #t)
(vector #f (vector #f 'overloaded))) ;; the inner vector is what gets returned. nope, don't know why. please refactor!
(else
(let* ((cmd-in (common:safe-vector-ref dat 0 'nocmd))
(cmd (if (symbol? cmd-in)
cmd-in
(string->symbol cmd-in)))
(params (common:safe-vector-ref dat 1 '()))
(start-t (current-milliseconds))
(readonly-mode (dbr:dbstruct-read-only dbstruct))
(readonly-command (member cmd api:read-only-queries))
(writecmd-in-readonly-mode (and readonly-mode (not readonly-command)))
(foo (begin
#;(common:telemetry-log (conc "api-in:"(->string cmd))
payload: `((params . ,params)))
#t))
(res
(if writecmd-in-readonly-mode
(conc "attempt to run write command "cmd" on a read-only database")
(case cmd
;;===============================================
;; READ/WRITE QUERIES
;;===============================================
((nocmd) '(#f "All broken!"))
((get-keys-write) (db:get-keys dbstruct)) ;; force a dummy "write" query to force server; for debug in -repl
;; SERVERS
((start-server) (apply server:kind-run params))
((kill-server) (set! *server-run* #f))
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;; save all stats
(let ((delta-t (- (current-milliseconds)
start-t)))
(hash-table-set! *db-api-call-time* cmd
(cons delta-t (hash-table-ref/default *db-api-call-time* cmd '()))))
(if writecmd-in-readonly-mode
(begin
(common:telemetry-log (conc "api-out:"(->string cmd))
payload: `((params . ,params)
(ok-res . #t)))
(vector #f res))
(begin
(common:telemetry-log (conc "api-out:"(->string cmd))
payload: `((params . ,params)
(ok-res . #f)))
(vector #t res))))))))
;; http-server send-response
;; api:process-request
;; db:*
;;
;; NB// Runs on the server as part of the server loop
;;
(define (api:process-request dbstruct $) ;; the $ is the request vars proc
(set! *api-process-request-count* (+ *api-process-request-count* 1))
(let* ((cmd ($ 'cmd))
(paramsj ($ 'params))
(params (db:string->obj paramsj transport: 'http)) ;; incoming data from the POST (or is it a GET?)
(resdat (api:execute-requests dbstruct (vector cmd params))) ;; process the request, resdat = #( flag result )
(success (vector-ref resdat 0))
(res (vector-ref resdat 1))) ;; (vector flag payload), get the payload, ignore the flag (why?)
(if (not success)
(debug:print 0 *default-log-port* "ERROR: success flag is #f for " cmd " with params " params))
(if (> *api-process-request-count* *max-api-process-requests*)
(set! *max-api-process-requests* *api-process-request-count*))
(set! *api-process-request-count* (- *api-process-request-count* 1))
;; This can be here but needs controls to ensure it doesn't run more than every 4 seconds
;; (rmt:dat->json-str
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;; save all stats
(let ((delta-t (- (current-milliseconds)
start-t)))
(hash-table-set! *db-api-call-time* cmd
(cons delta-t (hash-table-ref/default *db-api-call-time* cmd '()))))
(if writecmd-in-readonly-mode
(begin
#;(common:telemetry-log (conc "api-out:"(->string cmd))
payload: `((params . ,params)
(ok-res . #t)))
(vector #f res))
(begin
#;(common:telemetry-log (conc "api-out:"(->string cmd))
payload: `((params . ,params)
(ok-res . #f)))
(vector #t res))))))))
;; http-server send-response
;; api:process-request
;; db:*
;;
;; NB// Runs on the server as part of the server loop
;;
(define (api:process-request dbstruct $) ;; the $ is the request vars proc
(set! *api-process-request-count* (+ *api-process-request-count* 1))
(let* ((cmd ($ 'cmd))
(paramsj ($ 'params))
(params (db:string->obj paramsj transport: 'http)) ;; incoming data from the POST (or is it a GET?)
(resdat (api:execute-requests dbstruct (vector cmd params))) ;; process the request, resdat = #( flag result )
(success (common:safe-vector-ref resdat 0 #f))
(res (common:safe-vector-ref resdat 1 #f))) ;; (vector flag payload), get the payload, ignore the flag (why?)
(if (not success)
(debug:print 0 *default-log-port* "ERROR: success flag is #f for " cmd " with params " params))
(if (> *api-process-request-count* *max-api-process-requests*)
(set! *max-api-process-requests* *api-process-request-count*))
(set! *api-process-request-count* (- *api-process-request-count* 1))
;; This can be here but needs controls to ensure it doesn't run more than every 4 seconds
;; (rmt:dat->json-str
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